1990456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19139}}^1$

素因数の和:19158

約数の個数: 16

約数和(自身を含む): 4019400

約数和(自身を除く): 2028944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 19139, 38278, 76556, 153112, 248807, 497614, 995228, 1990456]

約数ペア:

[(1, 1990456), (2, 995228), (4, 497614), (8, 248807), (13, 153112), (26, 76556), (52, 38278), (104, 19139)]